Cosmological constant in a quantum fluid model

Details Cosmological constant in a quantum fluid model Cosmological constant in a quantum fluid model

2008-08-07

arxiv.org/abs/0808.1047v2

Physics

High Energy Physics

High Energy Physics - Theory

Latex file, 12 pages, some references added, typos corrected

Scientific paper

Possible analogies between vacuum state and quantum fluid provide a model to study vacuum energy density induced by thermal corrections, space-time curvature, boundary conditions and quantum back-reaction. We find that vacuum energy density in this quantum fluid model is not naturally of the order of the matter energy density. We show how higher-order corrections in quantum back-reaction can also contribute to vacuum energy density, and how the cosmological expansion is a manifestation of an universe out of mechanical equilibrium. This last fact implies that simple thermodynamic arguments are not enough to explain the cosmological constant problem due to the calculation of the associated vacuum energy density requires first the knowing of the underlying microscopic physics of vacuum.

Affiliated with

Also associated with

No associations

Rating

Cosmological constant in a quantum fluid model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cosmological constant in a quantum fluid model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmological constant in a quantum fluid model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-213715